Four friends, including the groom, embark on a 24-hour bachelor party in Las Vegas, but their wild night ends with them waking up in a hotel suite with no memory of the previous 12 hours. They must piece together the events of the night to find their missing friend and figure out what happened to various items that are now missing.

The Hangover
Friends embark on a frantic search for their missing companion in Las Vegas, struggling to recall the events of a bewildering and enigmatic night that threatens to disrupt their lives.